2212200021 has 32 divisors (see below), whose sum is σ = 3231360000. Its totient is φ = 1340144640.

The previous prime is 2212199999. The next prime is 2212200043. The reversal of 2212200021 is 1200022122.

It is an interprime number because it is at equal distance from previous prime (2212199999) and next prime (2212200043).

It is not a de Polignac number, because 2212200021 - 2⁵ = 2212199989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212200061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 803355 + ... + 806103.

It is an arithmetic number, because the mean of its divisors is an integer number (100980000).

Almost surely, 2^2212200021 is an apocalyptic number.

It is an amenable number.

2212200021 is a deficient number, since it is larger than the sum of its proper divisors (1019159979).

2212200021 is a wasteful number, since it uses less digits than its factorization.

2212200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2212200021 is about 47034.0304566810. The cubic root of 2212200021 is about 1302.9911442126.

Adding to 2212200021 its reverse (1200022122), we get a palindrome (3412222143).

The spelling of 2212200021 in words is "two billion, two hundred twelve million, two hundred thousand, twenty-one".